Edit Routing Data
What is it?
This interface allows users to update routing and erosion data (.rte files).How to use it:
Subbasin number of the current routing edits are displayed at the top.
RTE (routing) parameters
Make necessary changes for the parameters under 'RTE parameters'.Parameter description:
CH_W2: Average width of main channel (m).
CH_D: Average depth of main channel (m).
CH_S2: Average slope of main channel (m/m).
CH_L2: Length of main channel (km).
CH_N2: Manning's "n" value for the main channel.
CH_K2: Effective hydraulic conductivity in main channel (mm/hr).
CH_COV1: Channel erodibility factor.
CH_COV2: Channel cover factor.
CH_WDR: Channel width:depth ratio (m/m).
ALPHA_BNK: Baseflow alpha factor for bank storage (days).
ICANAL: Code for irrigation canal. 0: no irrigation, 1: irrigation canal..
CH_ONCO: Organic nitrogen concentration in the channel (ppm).
CH_OPCO: Organic phosphorus concentration in the channel (ppm).
CH_SIDE: Channel side slope.
CH_BNK_BD: Bulk density of channel bank sediment (g/cc).
CH_BED_BD: Bulk density of channel bed sediment (g/cc).
CH_BNK_KD: Erodibility of channel bank sediment by jet test (cm3/N-s).
CH_BED_KD: Erodibility of channel bed sediment by jet test (cm3/N-s).
CH_BNK_D50: Median particle size diameter of channel bank sediment (μm) CH_BNK_D50: Median particle size diameter of channel bed sediment (μm) CH_BNK_TC: Critical shear stress of channel bank (N/m2).
CH_BED_TC: Critical shear stress of channel bed (N/m2).
CH_EQN: Bulk density of channel bank sediment (g/cc).
PRF: Peak rate adjustment factor for sediment routing in the main channel.
SPCON: Linear parameter for calculating the maximum amount of sediment that can be reentrained during channel sediment routing.
SPEXP: Exponent parameter for calculating sediment reentrained in channel sediment routing.
Monthly erosion parameters
Make necessary changes for the parameters under 'Monthly erosion parameters'.Parameter description:
CHERODMO1: Channel erodibility factor for January.
CHERODMO2: Channel erodibility factor for February.
CHERODMO3: Channel erodibility factor for March.
CHERODMO4: Channel erodibility factor for April.
CHERODMO5: Channel erodibility factor for May.
CHERODMO6: Channel erodibility factor for June.
CHERODMO7: Channel erodibility factor for July.
CHERODMO8: Channel erodibility factor for August.
CHERODMO9: Channel erodibility factor for September.
CHERODMO10: Channel erodibility factor for October.
CHERODMO11: Channel erodibility factor for November.
CHERODMO12: Channel erodibility factor for December.
Monthly salt parameters
Make necessary changes for the parameters under 'Salt'.Parameter description:
HRU_SALT1: Monthly adjustment factors for HRU salt loadings for January.
HRU_SALT2: Monthly adjustment factors for HRU salt loadings for February.
HRU_SALT3: Monthly adjustment factors for HRU salt loadings for March.
HRU_SALT4: Monthly adjustment factors for HRU salt loadings for April.
HRU_SALT5: Monthly adjustment factors for HRU salt loadings for May.
HRU_SALT6: Monthly adjustment factors for HRU salt loadings for June.
HRU_SALT7: Monthly adjustment factors for HRU salt loadings for July.
HRU_SALT8: Monthly adjustment factors for HRU salt loadings for August.
HRU_SALT9: Monthly adjustment factors for HRU salt loadings for September.
HRU_SALT10: Monthly adjustment factors for HRU salt loadings for Octoer.
HRU_SALT11: Monthly adjustment factors for HRU salt loadings for November.
HRU_SALT12: Monthly adjustment factors for HRU salt loadings for December.
SALT_DEL: Salt delivery ratio in reach
Please note that these salt parameters are not currently implemented in SWAT model.
Applying the changes
Under 'Extend parameter edits', check 'Extend ALL RTE parameters' to apply all the current routing parameters. To only apply the parameters that have been updated, leave it unchecked.To apply the changes to current subbasin only, check 'Extend edits to current subbasin'.
To apply the changes to all subbasins, check 'Extend edits to ALL subbasins'.
To apply the changes to selected subbasins, including the current one, check 'Extend edits to selected subbasins' and select the subbasins from the list on the right.
Click 'Save Edits' and close the interface.
Don't forget to click 'Save Edits' butoon on the 'mgnSWAT Edit SWAT Data' interface.